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2. Please add the following line in the end of chan_dahdi.conf file
#include dahdi-channels.conf
3. Please run asterisk with the following command:
asterisk
asterisk -vvvgrc
reload
4. Please run dahdi show channels command
You should see 62 channels
5. How to check if the hardware echo cancellation works or not
1)
When you plug the EC64 into AX2D, please do not need to press hard, because the pin
is a little longer than the slot.
2)
After booting your server with the AX2D and EC64, please run dmesg command to
check if the hardware is detected by dahdi or not. You can get the following red
information.
VPM450: echo cancellation for 64 channels
VPM450: hardware DTMF disabled.
VPM450: Present and operational servicing 2 span(s)
3)
When you are using hardware echocancellation, please disable the software
echocancellation in /etc/dahdi/system.conf, and enable the echocancel=yes line in
/etc/asterisk/chan_dahdi.conf file. After setting, please restart dahdi and asterisk.
4)
Run asterisk, and make a call by channel 1, you can get the following information
marked with red line, if the EC64 is working.
Notice: If you enable the software echocancellation, you can also get the following red
lines, so please disable the software echocancellation when you use EC64.
localhost*CLI> dahdi show channel 1
Channel: 1
File Descriptor: 17
Span: 1
Extension: 300
Dialing: no
Context: from-pstn
Caller ID: 900
Calling TON: 33
Caller ID name: 900
Mailbox: none
Destroy: 0
InAlarm: 0
Signalling Type: ISDN PRI
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